Woven, lined tubular fabric and method and means for manufacturing same



Nov. 24, 1959 J. RABEUX ETAL WOVEN, LINED TUBULAR FABRIC AND METHOD ANDMEANS FOR MANUFACTURING SAME v Y 5 Sheets-Sheet 1 Filed Dec. 14, 1954ATTORNEY Nov. 24, 1959 J. RABEUX ETAL 2,913,799

WOVEN, LINED TUBULAR FABRIC AND METHOD AND MEANS FOR MANUFACTURING SAMEFiled Dec. 14, 1954 3 Sheets-Sheet 2 J. RABEUX ETAL Nov. 24, 1959 WOVEN,LINED TUBULAR FABRIC AND METHOD AND MEANS FOR MANUFACTURING SAME sSheets-Sheet :s

'- Filed Dec. 14, 1954 gvENToRs @mm A v 0111/1/11 IIIIIIII/ AAAIIlIl/IIIIII/I/IIII ll/l/l/l/I/ Two supplyrollers material, of paper forexample, wound thereon are rotat- U M 2,913,799 a i WOVEN, LINED TUBULARFABRIC AND METHOD ANDMEANS FOR MANUFACTURING SAME Jean RaheuinJP'aris,and Raymond Jacob; Eaubonne,

' France: assignors to Societe dApplications Generales dElectricite & deMecanique, Paris, France ice , Patented Nov. 24, 1959 'Aft'er passingthe ',"adjustable guide mechanism the coated-surfaceloflthespaper iifaces outward, so

' the weaving ring 33 'of the loom, it may be cemented to An object ofthe invention is to provide a method by means of which seamless woven,lined tubular fabrics may be manufactured."

Anotherobject of the invention is to provide a device by means of whichlined tubular fabrics may he'manufactured on a circular loom.

Other objects andstructural details of the invention will beapparentfromthe following description when read invconjunctionwith the accompanyingdrawings forming part of this specification, wherein'the device for useon a circular loom according to the invention is illustrated by way ofexample. v r

Fig. 1 is a fragmentaryvertical sectional view 'of the device accordingto the inventionfsome parts being brokenraway for the sake of better,illustration,

Fig. 2 is a secti fnal view taken on line II-II ofFi'g.

1, illustrating means broken away in Fig.1, a a

Fig. 3 is a sectional view taken on line III-III'of Fig.

1, illustrating the pressing means of the device, .partly' broken awayinFig. 1, and e Fig. 4 is a side elevation, partly in section, of thepressing means showninFig, 3. V I g i Fig 5 shows at 53 the storing inrolls of two sheets :(54and 55) of material previously coated with anadhesive product, these-tWo sheets being rolled up with the two adhesive'faces one against the other.

Fig. 6 shows a heating device placed in the weaving zone itself. Thisdevice substantially cornprisesfa heating ring 50 separated 'bya thinconducting wall 51 from the fabric-and-sheet product coated with thethermoplastic which is to insure adhesion.

lap 3 of several centimeters (Fig, 3);

Upon the cementing. of'the paper panel '3 to the tt1l: iila' r i fabric38 withinthe weavi'ng ring '33 the paper 3 firmly? adheres to the innersurface of the fabric138.: Asthe' drawing-tut mechanism draws ofitheicollapsedvtubular. fabric 38 with the paper lining Scemente'd to theinner surface thereof, the feeding speed of the paper'3 equals thedrawing-off speed of'the fabric 38. The tension in the paper 3 may beadjusted by a'suitable adjustment of the guiding mechanism 5 by means ofthe lever 5.

In order to assist the paper 3, are; its unwindingfrom the supply roll 1and passingguidemechan sm '5, in changing from its planesha'pe into therequired semicylindrical shape, another guiding device is provided whichis mounted onarms 4t), 41 rigid with a sleeve ZSYadjuStably attached.to..the shaft 9 bya'screwjAZ. Said guiding device comprises smallrollers 28 journalled at the ends of bars 26, 27 secured to the arms 40and 41 respectively. Said rollers 28 urge the paper 3 inwardly intocurved shape. i

' Above the weaving zonejiedabove the upper of the weaving ring33several heating lamps (i radiat ng infra-red rays are mounted one ring29 carried by reds The heating of the ,ring

may be effected by, a wound electric resistance or by a circulating hotfluid, liquid, steam or air. The heat is limited to the desired zone by,the protection of a thermal insulator 40 placed outside of the heatingring.

Fig. 7 illustrates a modifi ation of the heating system.

plied through coating .by means of a roller and vat or whichmay havebeen pulverized or deposited at 40 (Fig. 61) is caused to form a bond bymeans .of pressure in the rolls and is thendried at 44 below the weavingzone by a lamp or bank of lamps.

-Referring now to Fig. '1, 36 generally indicates'. the

auxiliary device according to the invention attached ito a circular loomwith a horizontal shed 31 and aweaving 1 each having a sheet 3 of liningably mounted diametrically opposite to each other, on a frame 2l'adjustably mounted ,on a fixed vertical shaft 9 --oaxially arrangedwith the longitudinal axis of the cir- The undriedadhesive product whichmay have been ap- 3t; hinged to the frame) at 31. Theintensity ofradiation orthese lamps acting on the coated surface of the paper 3within a rangelim'itedby ,thej circl es 7 and 4 (see Fig. 1) is adjustedin accordance with the speed ofope'ration, and, "thus, output of theloom in such a mani1er" that the asphaltic cement jon the paper3'isfsoft enough jtostick to the fabric 38 when it contacts thelatterbe'yond circle 4, The switching-onand switchingoif .of'these lampsis synchronized vwith the operation of the loom. "in order to avoidfaults in thecementing of the paper 3 tothe" fabric, 'means maybe'p'rovided by which the lamps 6 maybe switched on ,before the loom isstarted alter a relativelylong standstill.

In order to paste the paper 3 firmly to the fabric 38 upon entering theweavingzone it is pressed against the fairness by means of apressingdevice 45'arranged within the weaving ring 33. As best shown in Fig.v3,'said pressing device 45 comprising four wooden rollersjs rnay rotate.around the vertical axis of the loom, coinciding with the longitudinalaxis of the shaft 9, in the direction of the arrow A, i.e. opposit e tothe direction of rotation of the shuttles. The speed of rotation of saidpressure device 45 must be such that the path described by the rollers 8on the downwardly moving fabric 38 is in the form of a helix which is.so fiat that during each revolution of the pressure device 45 thepressure zone of each wooden roller 8 joverlaps a portion ofthe pressurezone ofthe preceding roller. 9 r r As best shown in Figs. 3 and 4, abracket 10 is secured to the upper part of a sleeve 11 fixed to theshaft 9. A hub 12 provided with four hollow spokes 13 is rotatablymounted on the lower part of sleeve 11. A sleeve 22 is axially movablein each of the hollow spokes 13. Each wall 46-of the associated sleeve22; the other end of said spring 20 presses against the bottom 21 of thehollow cular loom. One surface of ,the sheet 3 of paper coated withanadhesive, for example an asphaltic cement spoke 13. A rod 23 on thelower part of sleeve 22 carrying the rollers 8 is guided in a hole of aprojection 24 of the hollow spoke 13 in order to prevent the parts 22,23 hearing the rollers 8 from rotation.

On the] bracket an electromotor 15 is mounted which by" means of gearwheels'16, 17 and a worm 18 rotates a Bythe use of the device thedoubling of the fabric, i.e.

the attachment of a lining to the fabric in a separate working step isavoided. Furthermore, the device according to the present inventionrenders possible the manufacture of seamless woven tubular fabrics witha lining attached thereto. The lining may be of any suitable material,for example paper, rubber, a plastic, or any other synthetic or natural.material. Any suitable adhesive may beused for cementing the lining tothe fabric.

Aseamless woven, lined tubular fabric according to the invention isespecially useful for the manufacture of bags, sacks or the like,wherein the lining is used to prevent the escape of material placed intothe bag or the like through pores of the fabric thereof and to preventfurther outside air or moisture from entering into the bag or the like.

Hitherto lined fabrics are made in such a way that the fabric is'wovenon an ordinary loom and subsequently a lining is applied to the fiatfabric in a separate step one pasting machine requiring additional spacein the factory and operators for servicing same, whereby the costs ofmanufacture become very high. The bags and sacks produced from doubledfabrics woven on ordinary looms and lined in this hitherto customarymanner, however, have at least one lateral seam. As a matter of fact,the protective lining and, of course, the fabric are interrupted atsucha seam, so that moisture is liable to enter, or powdery material mayescape through the seam.

1y after the pressing-on of the sheet to the tubular fabric so as tocause a drying and binding of the adhesive. Preferably an adhesive isused, which binds fast enough so that the normal speed of operation ofthe loom may be maintained. I

When an asphaltic cement is to be applied to the sheet, preferablyheating devices with automatic temperature control are used.

The heating device causes a heating of the adhesive or the coated sheetor the thermoplastic sheet (if such a material is used) to the desiredtemperature necessary to cause the adhesive effect.

If desired the weaving ring arranged in the weaving zone can be designedas a heating means which may be switched on and off together with themotor driving the loom.

Instead of a dynamic pressure device as that shown in the drawings (seeFigs. 3 and 4), which is automatically started and stopped with thestarting and stopping of the loom, stationary pressure means may beprovided within the weaving ring, such as leaf springs or spring-loadedpressure members.

We have described preferred embodiments of our invention, but it isunderstood that this disclosure is for the purpose of illustration andthat various omissions or changes in shape, proportion and arrangementsof parts,

. as Well as the substitution of equivalent elements for These drawbacksare avoided by the present invention, 7

according to which 'a tubular fabric is woven on a circular loom andpanels of a lining material, preferably a non-textile material,'arecemented to the inside of said tubular fabric in the same operation.

The woven tubular fabric manufactured in the manner described abovecomprises two panels of non-textile material cemented to the innersurface of the tubular fabric. If desired, however, more than two suchpanels could be cemented to the tubular fabric in a similar manner.

Instead of using two individual supply rolls witha winding of a sheet oflining material on each roll, only one supply rol-l could be arrangedabove the loom, the sheet wound thereon consists of two non-textilelayers sticking to each other through an adhesive. In such a case,however, means must be provided by which the sheet consisting of twolayers at first is guided upwardly, whereupon the two layers areseparated from each other by rollers and guided laterally and downwardlyto the weaving zone, where, as in the illustrated example, a pressuredevice is arranged to press both layers onto the inner surface of thetubular fabric, it being understood that the coated surface of eachlayer faces the inner surface of the tubular fabric.

Instead of using supply rolls with a'winding of a sheet coated at one ofits surfaces with an adhesive, it is possible to use rolls with awinding of a sheet free from any adhesive coating and to apply anadhesive substance to the sheet, by spraying or spreading-on theadhesive, for example, during its downward movement to the weaving zone.In this case, of course, the adhesivemust be subjected to a heattreatment simultaneous with or shortthose, herein shown and describedmay be made without departing from the spirit and scope of the inventionas set forth in the appended claims.

What we claim is:

1. A method for the manufacture of a woven, lined tubular fabric,comprising the steps of: weaving a tubular fabric on a circular loomhaving a weaving ring, supplying to the interior of said weaving ring alining material coated at one of its surfaces with a material capable ofbecoming an adhesive, processing said material so that it becomes anadhesive, and bringing the adhesive opposite the inner surface of thetubular fabric, drawing off the tubular fabric and the lining materialat the same speed, and pressing the adhesive against the inner surfaceof said tubular fabric for cementing the former to the latter.

2. In amethod as claimed in claim 1, the step of subjecting the coatedsurface of the lining material to a heat treatment.

3. In a method as claimed in claim 2, the step of subjecting the coatedsurface of the lining material to a heat treatment before it reachesthe'weaving ring.

4. In a method as claimed in claim 2, the step of subjecting the coatedsurface of the lining material to a heat treatment during its passagethrough the weaving ring.

5. In a circular loom, the combination'of: a weaving ring, means forsupplying at least one length of lining material coated at one of itssurfaces with an adhesive into the interior of said weaving ring,guiding means for guiding the supplied lining material to said weavingring with its coated surface facing the inner surface of the tubularfabric woven by the implements of the loom, heating means for heatingthe coated surface of the lining material, pressing means for pressingsaid lining material onto the inner surface of the tubular fabric so asto cause an adhesion of the lining material to the fabric, means fordrawing off the tubular fabric with the lining material cementedthereon, said heating means comprising a heated device arranged abovesaid weaving ring for heating the coated surface of the lining materialin the zone above the weaving ring.

6. In a circular loom,-the combination of: a weaving ring, means forsupplying at least one length of lining material coated at one of itssurfaces with an adhesive into the interior of said weaving ring,guiding means for guiding the supplied lining material to said weavingring with its coated surface facing the inner surface of the tubularfabric woven by the implements of theloom, heating means for heating thecoated surface of the lining material, pressing means for pressing saidlining material onto the inner surface of the tubular fabric so as tocause an adhesion of the lining material to the fabric, means fordrawing off the tubular fabric with the lining material cementedthereon, said heating means comprising a ring arranged above saidweaving ring, and a series of infra-red lamps mounted on said ring foremanating rays onto the coated surface of the lining material in a zoneabove the upper edge of said weaving ring. I

7. In a circular loom, the combination of: a weaving ring, means forsupplying at least one length of lining material coated at one of itssurfaces with an adhesive into the interior of said weaving ring,guiding means for guiding the supplied lining material to said weavingring with its coated surface facing the inner surface of the tubularfabric woven by the implements of the loom, heating means for heatingthe coated surface of the lining material, pressing means for pressingsaid lining material onto the inner surface of the tubular fabric so asto cause an adhesion of the lining material to the fabric, means fordrawing off the tubular fabric with the lining material cementedthereon, said heating means comprising a heating device arranged in saidweaving ring for heating the coated surface of the lining materialduring its passage through said weaving ring.

8. In a circular loom, the combination of: a weaving ring, means forsupplying at least one length of lining material with a coating into theinterior of said weaving ling, means for processing said coating so thatit becomes an adhesive, the adhesive facing the inner surface of thetubular fabric woven by the implements of the loom, pressing meansarranged within said weaving ring for pressing the lining material withthe surface bearing the adhesive against the inner surface of saidtubular fabric, and means for drawing-off the tubular fabric togetherwith the lining material.

9. In a circular loom as claimed in claim 8, said pressing means beingarranged within said weaving ring, and a heating device arranged at thelevel of said pressing means for heating the adhesive in the pressingzone.

10. In a circular loom as claimed in claim 8, said pressing means beingarranged within said weaving ring, and a heating device arranged belowthe level of said pressing means for heating the adhesive after passingthe pressing zone.

11. In a circular loom, the combination of a weaving ring, means forsupplying at least one length of lining material coated at one of itssurfaces with an adhesive into the interior of said Weaving ring,guiding means for guiding the supplied lining material to said Weavingring with its coated surface facing the inner surface of the tubularfabric woven by the implements of the loom, heating means for heatingthe coated surface of the lining material, pressing means for pressingsaid lining material onto the inner surface of the tubular fabric so asto cause an adhesion of the lining material to the fabric, means fordrawing off the tubular fabric with the lining material cementedthereon, said supplying means comprising a roller having a winding of asheet of lining material consisting of two layers sticking to each otherthrough an adhesive, means for separating said two layers from eachother at a point between said supplying means and said weaving ring, andguiding means for guiding the separated layers to said weaving ring in aposition wherein the surfaces carrying the adhesive face the inner sideof the tubular fabric.

References Cited in the file of this patent UNITED STATES PATENTS749,424 Collins Jan. 12, 1904 757,610 Flowers Apr. 19, 1904 1,110,671Cobb Sept. 15, 1914 1,327,677 Kennedy Jan. 13, 1920 2,127,012 Spangleret al. Aug. 16, 1938 2,321,937 Quinn June 15, 1943 2,459,688 De VyverJan. 18, 1949 2,735,451 Christiansen et al Feb. 21, 1956 FOREIGN PATENTS475,544 Italy Nov. 3, 1952 1,118,814 France Mar. 26, 1956

